Security readout for executives and security teams
Plain-English summary
CVE-2021-22428 is a Huawei smartphone issue where incomplete cleanup may allow authentication bypass. The public record names EMUI 11.0.0 and Magic UI 4.0.0. The sources do not provide CVSS, attack requirements, or detailed remediation text, so urgency depends on whether those builds exist in the device fleet.
Executive priority
Handle this as a targeted mobile fleet hygiene issue, not a confirmed emergency. Prioritize if Huawei devices can access sensitive systems or bypassing device authentication would affect regulated or high-value business workflows.
Technical view
The CVE describes an incomplete cleanup vulnerability in Huawei smartphones that may lead to authentication bypass. Affected products listed are Huawei EMUI 11.0.0 and Magic UI 4.0.0. No CWE, CVSS vector, exploit preconditions, or fixed build identifiers are provided in the supplied sources.
Likely exposure
Exposure appears limited to Huawei smartphones running EMUI 11.0.0 or Magic UI 4.0.0. Organizations with managed Huawei mobile fleets, BYOD access, or device-based authentication controls should verify whether these versions remain in use.
Exploitation context
The supplied sources do not indicate active exploitation. The CVE is not listed as KEV in the provided bundle. Public details are sparse, so do not assume exploit availability, remote reachability, or privilege requirements from the available evidence.
Researcher notes
The record lacks severity scoring, weakness classification, affected model detail, fixed versions, and exploitation prerequisites. Analysis should stay anchored to the Huawei bulletin and CVE record. Additional vendor detail is needed before assessing exploitability or writing precise detection logic.
Mitigation direction
- Inventory Huawei smartphones for EMUI 11.0.0 and Magic UI 4.0.0.
- Review Huawei’s June 2021 bulletin for vendor remediation guidance.
- Apply available Huawei security updates through supported management channels.
- Restrict sensitive access from affected builds until updated or risk-accepted.
- Monitor vendor advisories for fixed build details if not already documented.
Validation and detection
- Confirm device OS version and patch level through MDM or device settings.
- Check whether affected Huawei builds remain enrolled in corporate access systems.
- Verify Huawei security updates have been applied to in-scope devices.
- Review authentication logs for unusual access from affected device models.
- Document exceptions where affected devices cannot be updated.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-22428 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://consumer.huawei.com/en/support/bulletin/2021/6/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.